A piece of transparent material specifically designed to be placed directly in front of a dial or scale to protect it from foreign matter. It is cut to size and may include a frame. It may have an index line or other marking. See also window, observation; and dial, scale.
Classification: Clock or watch glass; glasses for noncorrective spectagles not optically worked; hollow glass spheres and their segments for the mnfctr ofsuch glasses
NSN 5920-00-054-0172
NSN 5915-01-519-3287
NSN 6645-01-512-8472
NSN 6320-01-116-3980
NSN 5985-01-066-7743
NSN 6645-00-279-1777
NSN 6610-01-202-1373
NSN 6620-01-654-7142
NSN 5905-01-121-0153
NSN 5975-00-282-2707
NSN 6650-01-050-5974
NSN 7035-01-139-2637